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sensors Mode-S transponder

3E28E4

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-IGRK · CESSNA 525A Citation CJ2

Hex
3E28E4
Octal
17424344
Decimal
4,073,700
Country
DE
Tail
D-IGRK
Type
C25A
No current signal · last broadcast Jul 26, 16:55 UTC
Flights observed
220
Distinct callsigns
1
Country
DE
Last broadcast
Jul 26, 16:55 UTC

Last known position

Most recent position reported by Mode-S 3E28E4.

Country allocation

The ICAO 24-bit address 3E28E4 falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
DIGRK - 220 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DIGRK - Jul 26, 16:25 UTCJul 26, 16:50 UTC25m
2026-07-26 DIGRK - Jul 26, 13:50 UTCJul 26, 15:35 UTC1h 45m
2026-07-26 DIGRK - Jul 26, 12:35 UTCJul 26, 13:05 UTC30m
2026-07-25 DIGRK - Jul 25, 09:00 UTCJul 25, 10:25 UTC1h 25m
2026-07-24 DIGRK - Jul 24, 15:10 UTCJul 24, 15:40 UTC30m
2026-07-24 DIGRK LEJ → GWT Jul 24, 13:00 UTCJul 24, 13:55 UTC55m
2026-07-24 DIGRK BER → LEJ Jul 24, 10:40 UTCJul 24, 11:00 UTC20m
2026-07-22 DIGRK NCL → BER Jul 22, 13:20 UTCJul 22, 15:15 UTC1h 55m
2026-07-22 DIGRK - Jul 22, 11:30 UTCJul 22, 12:30 UTC1h 0m
2026-07-21 DIGRK - Jul 21, 09:50 UTCJul 21, 11:05 UTC1h 15m
2026-07-21 DIGRK LEJ → OBF Jul 21, 08:00 UTCJul 21, 08:45 UTC45m
2026-07-20 DIGRK - Jul 20, 10:15 UTCJul 20, 11:45 UTC1h 30m
2026-07-19 DIGRK - Jul 19, 12:00 UTCJul 19, 13:05 UTC1h 5m
2026-07-19 DIGRK STR → GVA Jul 19, 08:45 UTCJul 19, 09:30 UTC45m
2026-07-18 DIGRK BER → STR Jul 18, 08:10 UTCJul 18, 09:00 UTC50m
2026-07-17 DIGRK - Jul 17, 15:15 UTCJul 17, 16:49 UTC1h 35m
2026-07-17 DIGRK - Jul 17, 13:20 UTCJul 17, 13:35 UTC15m
2026-07-16 DIGRK - Jul 16, 13:49 UTCJul 16, 15:00 UTC1h 10m
2026-07-16 DIGRK - Jul 16, 08:00 UTCJul 16, 08:40 UTC40m
2026-07-15 DIGRK - Jul 15, 16:55 UTCJul 15, 17:40 UTC45m
2026-07-15 DIGRK - Jul 15, 14:00 UTCJul 15, 15:40 UTC1h 40m
2026-07-15 DIGRK - Jul 15, 10:55 UTCJul 15, 11:50 UTC55m
2026-07-15 DIGRK HAM → OBF Jul 15, 09:00 UTCJul 15, 10:10 UTC1h 10m
2026-07-14 DIGRK LEJ → HAM Jul 14, 13:50 UTCJul 14, 14:25 UTC35m
2026-07-12 DIGRK - Jul 12, 12:25 UTCJul 12, 13:40 UTC1h 15m
2026-07-12 DIGRK - Jul 12, 10:05 UTCJul 12, 11:25 UTC1h 20m
2026-07-11 DIGRK - Jul 11, 09:20 UTCJul 11, 11:20 UTC2h 0m
2026-07-11 DIGRK ZRH → OBF Jul 11, 08:25 UTCJul 11, 08:50 UTC25m
2026-07-10 DIGRK DNR → ZRH Jul 10, 14:30 UTCJul 10, 15:55 UTC1h 25m
2026-07-10 DIGRK - Jul 10, 09:45 UTCJul 10, 11:05 UTC1h 20m
2026-07-09 DIGRK - Jul 9, 16:20 UTCJul 9, 17:45 UTC1h 25m
2026-07-09 DIGRK INN → CFR Jul 9, 10:20 UTCJul 9, 11:50 UTC1h 30m
2026-07-09 DIGRK LEJ → INN Jul 9, 07:45 UTCJul 9, 08:30 UTC45m
2026-07-08 DIGRK - Jul 8, 11:10 UTCJul 8, 11:50 UTC40m
2026-07-07 DIGRK - Jul 7, 09:00 UTCJul 7, 09:55 UTC55m
2026-07-07 DIGRK CGN → FRA Jul 7, 07:45 UTCJul 7, 08:15 UTC30m
2026-07-05 DIGRK GRZ → CGN Jul 5, 16:35 UTCJul 5, 18:00 UTC1h 25m
2026-07-05 DIGRK NUE → GRZ Jul 5, 13:00 UTCJul 5, 13:50 UTC50m
2026-07-05 DIGRK HAM → NUE Jul 5, 11:05 UTCJul 5, 12:00 UTC55m
2026-07-04 DIGRK BWE → HAM Jul 4, 10:10 UTCJul 4, 10:40 UTC30m
2026-07-04 DIGRK - Jul 4, 08:05 UTCJul 4, 09:45 UTC1h 40m
2026-07-04 DIGRK GRZ → GOA Jul 4, 05:25 UTCJul 4, 06:25 UTC1h 0m
2026-07-03 DIGRK CGN → GRZ Jul 3, 12:40 UTCJul 3, 13:45 UTC1h 5m
2026-07-03 DIGRK - Jul 3, 10:55 UTCJul 3, 11:30 UTC35m
2026-07-03 DIGRK ZRH → RTM Jul 3, 09:00 UTCJul 3, 10:20 UTC1h 20m
2026-07-03 DIGRK STR → ZRH Jul 3, 07:00 UTCJul 3, 07:20 UTC20m
2026-07-02 DIGRK - Jul 2, 17:50 UTCJul 2, 18:50 UTC1h 0m
2026-07-02 DIGRK - Jul 2, 16:10 UTCJul 2, 17:05 UTC55m
2026-07-02 DIGRK - Jul 2, 14:15 UTCJul 2, 15:15 UTC1h 0m
2026-07-01 DIGRK - Jul 1, 12:00 UTCJul 1, 12:50 UTC50m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the D-IGRK page for operator, model, and routing details .

Mode-S 3E28E4 frequently asked

What is Mode-S code 3E28E4?
3E28E4 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-IGRK.
Where is Mode-S 3E28E4 registered?
Mode-S code 3E28E4 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E28E4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E28E4, octal 17424344, decimal 4,073,700.
What flights does 3E28E4 operate?
Mode-S 3E28E4 has broadcast 1 distinct callsign, including DIGRK.